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FMF Racing Factory 4.1 ATV Slip-On Exhaust - Details

The Factory 4.1 is FMF Racing's premier performance ATV exhaust. With 30 years of racing experience behind it, the Factory 4.1 takes advantage of everything FMF Racing's learned on the race track. It is guaranteed to produce more horsepower throughout the entire RPM range. If performance is your priority, the Factory 4.1 is the quad exhaust for you.